A comparison of DDS and DRFM techniques in the generation of "smart noise" jamming waveforms
By: Charles Joffery Watson
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1996
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 137
Description: This thesis presents a comparison of the effectiveness of 'smart noise' jamming waveforms      against advanced threat radars, which are generated using either Direct Digital Synthesis      (DDS) or Digital RF Memory (DRFM) based support jamming. The challenge lies in the      fact the modern radar employs advanced waveforms, ultralow sidelobe antennas, coherent      sidelobe cancelers, and sidelobe blankers to inhibit signals entering through its sidelobes.      This thesis compares the effectiveness of using DDS versus DRFM techniques to meet this      challenge. In particular, the effect of mismatched frequency on the DDS jamming waveform      is described, as is the effect of quantization and multi-signal storage in the DRFM. A      quantitative comparison of these jamming techniques against the AN/TPS-70 surveillance      radar is made.
Notes: Thesis advisor(s): Phillip E. Pace,  D. Curtis Schleher.

"September 1996."

Thesis (M.S. in Systems Engineering) Naval Postgraduate School, September 1996.

Includes bibliographical references (p. 135-136)

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader.

US Army (USA) author.

dk/dk cc:9116 5/15/97